Improvement in surface-coatings to hard soap



UNITED STATES PATENT QFFIGE.

WILLIAM V. WVALLAOE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SURFACE-COATINGS TO HARD SQAP.

Specification forming part of Letters Iatent No. 143,601, dated October14, 1833; application filed To all whom it may concern:

Be it known that I, WILLIAM VIRGIL WAL- LACE, of Boston, county ofSuffolk and State of Massachusetts, have invented a new and useful modeof preserving, in a practical and marketable condition, manufacturedhard soap, when mixed with a considerable proportion of soda or itsequivalentyand I do hereby declare that the following is a full andexact description.

The nature of my invention consists in applying a surfacecoating tomanufactured hard soap, when the same has been mixed or-filled with aconsiderable quantity of soda or its equivalent, to prevent, in theprocess of drying, alkaline formations on the surface of the soap, andthe natural crumbling and deterio ration which result.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

I use about fifty parts of ordinary resin soap, forty parts of beeftallow, and ten parts of wax or spermaceti; place in a vessel and applyheat. When entirely melted add water till it approaches the consistencyof sirup. The soap to be coated is dipped in this mixture and placedupon racks to dry. The proportions of tallow and wax should vary inaccordance with the strength of the alkali in the soap with which it ismixed. There should be suflicient tallow to prevent a surface crystal orpowder formation, but not more than the alkali of the mixture will causeto be readily dissolved in water. Wax or spermaceti is added to stiifenthe whole when cold. This mixture is applied while warm.

